// cost of others, but should really just be changed.
holder_commitment_point: HolderCommitmentPoint,
- cur_holder_commitment_transaction_number: u64,
cur_counterparty_commitment_transaction_number: u64,
value_to_self_msat: u64, // Excluding all pending_htlcs, fees, and anchor outputs
pending_inbound_htlcs: Vec<InboundHTLCOutput>,
destination_script,
holder_commitment_point,
- cur_holder_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
cur_counterparty_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
value_to_self_msat,
destination_script,
holder_commitment_point,
- cur_holder_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
cur_counterparty_commitment_transaction_number: INITIAL_COMMITMENT_NUMBER,
value_to_self_msat,
let funding_script = self.context.get_funding_redeemscript();
- let keys = self.context.build_holder_transaction_keys(self.context.cur_holder_commitment_transaction_number);
+ let keys = self.context.build_holder_transaction_keys(self.context.holder_commitment_point.transaction_number());
- let commitment_stats = self.context.build_commitment_transaction(self.context.cur_holder_commitment_transaction_number, &keys, true, false, logger);
+ let commitment_stats = self.context.build_commitment_transaction(self.context.holder_commitment_point.transaction_number(), &keys, true, false, logger);
let commitment_txid = {
let trusted_tx = commitment_stats.tx.trust();
let bitcoin_tx = trusted_tx.built_transaction();
channel_id: Some(self.context.channel_id()),
};
- self.context.cur_holder_commitment_transaction_number -= 1;
+ self.context.holder_commitment_point.advance(&self.context.holder_signer, &self.context.secp_ctx, logger);
self.context.expecting_peer_commitment_signed = false;
// Note that if we need_commitment & !AwaitingRemoteRevoke we'll call
// build_commitment_no_status_check() next which will reset this to RAAFirst.
// Before proposing a feerate update, check that we can actually afford the new fee.
let dust_exposure_limiting_feerate = self.context.get_dust_exposure_limiting_feerate(&fee_estimator);
let htlc_stats = self.context.get_pending_htlc_stats(Some(feerate_per_kw), dust_exposure_limiting_feerate);
- let keys = self.context.build_holder_transaction_keys(self.context.cur_holder_commitment_transaction_number);
- let commitment_stats = self.context.build_commitment_transaction(self.context.cur_holder_commitment_transaction_number, &keys, true, true, logger);
+ let keys = self.context.build_holder_transaction_keys(self.context.holder_commitment_point.transaction_number());
+ let commitment_stats = self.context.build_commitment_transaction(self.context.holder_commitment_point.transaction_number(), &keys, true, true, logger);
let buffer_fee_msat = commit_tx_fee_sat(feerate_per_kw, commitment_stats.num_nondust_htlcs + htlc_stats.on_holder_tx_outbound_holding_cell_htlcs_count as usize + CONCURRENT_INBOUND_HTLC_FEE_BUFFER as usize, self.context.get_channel_type()) * 1000;
let holder_balance_msat = commitment_stats.local_balance_msat - htlc_stats.outbound_holding_cell_msat;
if holder_balance_msat < buffer_fee_msat + self.context.counterparty_selected_channel_reserve_satoshis.unwrap() * 1000 {
assert!(!self.context.is_outbound() || self.context.minimum_depth == Some(0),
"Funding transaction broadcast by the local client before it should have - LDK didn't do it!");
self.context.monitor_pending_channel_ready = false;
- let next_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.cur_holder_commitment_transaction_number, &self.context.secp_ctx);
+ let next_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.holder_commitment_point.transaction_number(), &self.context.secp_ctx);
Some(msgs::ChannelReady {
channel_id: self.context.channel_id(),
next_per_commitment_point,
}
fn get_last_revoke_and_ack(&self) -> msgs::RevokeAndACK {
- let next_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.cur_holder_commitment_transaction_number, &self.context.secp_ctx);
- let per_commitment_secret = self.context.holder_signer.as_ref().release_commitment_secret(self.context.cur_holder_commitment_transaction_number + 2);
+ let next_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.holder_commitment_point.transaction_number(), &self.context.secp_ctx);
+ let per_commitment_secret = self.context.holder_signer.as_ref().release_commitment_secret(self.context.holder_commitment_point.transaction_number() + 2);
msgs::RevokeAndACK {
channel_id: self.context.channel_id,
per_commitment_secret,
return Err(ChannelError::Close("Peer sent an invalid channel_reestablish to force close in a non-standard way".to_owned()));
}
- let our_commitment_transaction = INITIAL_COMMITMENT_NUMBER - self.context.cur_holder_commitment_transaction_number - 1;
+ let our_commitment_transaction = INITIAL_COMMITMENT_NUMBER - self.context.holder_commitment_point.transaction_number() - 1;
if msg.next_remote_commitment_number > 0 {
let expected_point = self.context.holder_signer.as_ref().get_per_commitment_point(INITIAL_COMMITMENT_NUMBER - msg.next_remote_commitment_number + 1, &self.context.secp_ctx);
let given_secret = SecretKey::from_slice(&msg.your_last_per_commitment_secret)
}
// We have OurChannelReady set!
- let next_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.cur_holder_commitment_transaction_number, &self.context.secp_ctx);
+ let next_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.holder_commitment_point.transaction_number(), &self.context.secp_ctx);
return Ok(ReestablishResponses {
channel_ready: Some(msgs::ChannelReady {
channel_id: self.context.channel_id(),
}
let next_counterparty_commitment_number = INITIAL_COMMITMENT_NUMBER - self.context.cur_counterparty_commitment_transaction_number + if is_awaiting_remote_revoke { 1 } else { 0 };
- let channel_ready = if msg.next_local_commitment_number == 1 && INITIAL_COMMITMENT_NUMBER - self.context.cur_holder_commitment_transaction_number == 1 {
+ let channel_ready = if msg.next_local_commitment_number == 1 && INITIAL_COMMITMENT_NUMBER - self.context.holder_commitment_point.transaction_number() == 1 {
// We should never have to worry about MonitorUpdateInProgress resending ChannelReady
- let next_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.cur_holder_commitment_transaction_number, &self.context.secp_ctx);
+ let next_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.holder_commitment_point.transaction_number(), &self.context.secp_ctx);
Some(msgs::ChannelReady {
channel_id: self.context.channel_id(),
next_per_commitment_point,
}
pub fn get_cur_holder_commitment_transaction_number(&self) -> u64 {
- self.context.cur_holder_commitment_transaction_number + 1
+ self.context.holder_commitment_point.transaction_number() + 1
}
pub fn get_cur_counterparty_commitment_transaction_number(&self) -> u64 {
debug_assert!(self.context.minimum_depth.unwrap_or(1) > 0);
return true;
}
- if self.context.cur_holder_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1 &&
+ if self.context.holder_commitment_point.transaction_number() == INITIAL_COMMITMENT_NUMBER - 1 &&
self.context.cur_counterparty_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER - 1 {
// If we're a 0-conf channel, we'll move beyond AwaitingChannelReady immediately even while
// waiting for the initial monitor persistence. Thus, we check if our commitment
// next_local_commitment_number is the next commitment_signed number we expect to
// receive (indicating if they need to resend one that we missed).
- next_local_commitment_number: INITIAL_COMMITMENT_NUMBER - self.context.cur_holder_commitment_transaction_number,
+ next_local_commitment_number: INITIAL_COMMITMENT_NUMBER - self.context.holder_commitment_point.transaction_number(),
// We have to set next_remote_commitment_number to the next revoke_and_ack we expect to
// receive, however we track it by the next commitment number for a remote transaction
// (which is one further, as they always revoke previous commitment transaction, not
}
if self.context.commitment_secrets.get_min_seen_secret() != (1 << 48) ||
self.context.cur_counterparty_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER ||
- self.context.cur_holder_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
+ self.context.holder_commitment_point.transaction_number() != INITIAL_COMMITMENT_NUMBER {
panic!("Should not have advanced channel commitment tx numbers prior to funding_created");
}
/// Returns true if we can resume the channel by sending the [`msgs::OpenChannel`] again.
pub fn is_resumable(&self) -> bool {
!self.context.have_received_message() &&
- self.context.cur_holder_commitment_transaction_number == INITIAL_COMMITMENT_NUMBER
+ self.context.holder_commitment_point.transaction_number() == INITIAL_COMMITMENT_NUMBER
}
pub fn get_open_channel(&self, chain_hash: ChainHash) -> msgs::OpenChannel {
panic!("Cannot generate an open_channel after we've moved forward");
}
- if self.context.cur_holder_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
+ if self.context.holder_commitment_point.transaction_number() != INITIAL_COMMITMENT_NUMBER {
panic!("Tried to send an open_channel for a channel that has already advanced");
}
- let first_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.cur_holder_commitment_transaction_number, &self.context.secp_ctx);
+ let first_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.holder_commitment_point.transaction_number(), &self.context.secp_ctx);
let keys = self.context.get_holder_pubkeys();
msgs::OpenChannel {
}
if self.context.commitment_secrets.get_min_seen_secret() != (1 << 48) ||
self.context.cur_counterparty_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER ||
- self.context.cur_holder_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
+ self.context.holder_commitment_point.transaction_number() != INITIAL_COMMITMENT_NUMBER {
panic!("Should not have advanced channel commitment tx numbers prior to funding_created");
}
log_trace!(logger, "Initial counterparty tx for channel {} is: txid {} tx {}",
&self.context.channel_id(), counterparty_initial_bitcoin_tx.txid, encode::serialize_hex(&counterparty_initial_bitcoin_tx.transaction));
- let holder_signer = self.context.build_holder_transaction_keys(self.context.cur_holder_commitment_transaction_number);
- let initial_commitment_tx = self.context.build_commitment_transaction(self.context.cur_holder_commitment_transaction_number, &holder_signer, true, false, logger).tx;
+ let holder_signer = self.context.build_holder_transaction_keys(self.context.holder_commitment_point.transaction_number());
+ let initial_commitment_tx = self.context.build_commitment_transaction(self.context.holder_commitment_point.transaction_number(), &holder_signer, true, false, logger).tx;
{
let trusted_tx = initial_commitment_tx.trust();
let initial_commitment_bitcoin_tx = trusted_tx.built_transaction();
} else {
self.context.channel_state = ChannelState::AwaitingChannelReady(AwaitingChannelReadyFlags::new());
}
- self.context.cur_holder_commitment_transaction_number -= 1;
+ self.context.holder_commitment_point.advance(&self.context.holder_signer, &self.context.secp_ctx, logger);
self.context.cur_counterparty_commitment_transaction_number -= 1;
log_info!(logger, "Received funding_signed from peer for channel {}", &self.context.channel_id());
) {
panic!("Tried to send accept_channel after channel had moved forward");
}
- if self.context.cur_holder_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
+ if self.context.holder_commitment_point.transaction_number() != INITIAL_COMMITMENT_NUMBER {
panic!("Tried to send an accept_channel for a channel that has already advanced");
}
///
/// [`msgs::AcceptChannel`]: crate::ln::msgs::AcceptChannel
fn generate_accept_channel_message(&self) -> msgs::AcceptChannel {
- let first_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.cur_holder_commitment_transaction_number, &self.context.secp_ctx);
+ let first_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(self.context.holder_commitment_point.transaction_number(), &self.context.secp_ctx);
let keys = self.context.get_holder_pubkeys();
msgs::AcceptChannel {
fn check_funding_created_signature<L: Deref>(&mut self, sig: &Signature, logger: &L) -> Result<CommitmentTransaction, ChannelError> where L::Target: Logger {
let funding_script = self.context.get_funding_redeemscript();
- let keys = self.context.build_holder_transaction_keys(self.context.cur_holder_commitment_transaction_number);
- let initial_commitment_tx = self.context.build_commitment_transaction(self.context.cur_holder_commitment_transaction_number, &keys, true, false, logger).tx;
+ let keys = self.context.build_holder_transaction_keys(self.context.holder_commitment_point.transaction_number());
+ let initial_commitment_tx = self.context.build_commitment_transaction(self.context.holder_commitment_point.transaction_number(), &keys, true, false, logger).tx;
let trusted_tx = initial_commitment_tx.trust();
let initial_commitment_bitcoin_tx = trusted_tx.built_transaction();
let sighash = initial_commitment_bitcoin_tx.get_sighash_all(&funding_script, self.context.channel_value_satoshis);
}
if self.context.commitment_secrets.get_min_seen_secret() != (1 << 48) ||
self.context.cur_counterparty_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER ||
- self.context.cur_holder_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
+ self.context.holder_commitment_point.transaction_number() != INITIAL_COMMITMENT_NUMBER {
panic!("Should not have advanced channel commitment tx numbers prior to funding_created");
}
self.context.channel_state = ChannelState::AwaitingChannelReady(AwaitingChannelReadyFlags::new());
self.context.channel_id = ChannelId::v1_from_funding_outpoint(funding_txo);
self.context.cur_counterparty_commitment_transaction_number -= 1;
- self.context.cur_holder_commitment_transaction_number -= 1;
+ self.context.holder_commitment_point.advance(&self.context.holder_signer, &self.context.secp_ctx, logger);
let (counterparty_initial_commitment_tx, funding_signed) = self.context.get_funding_signed_msg(logger);
debug_assert!(false, "Cannot generate an open_channel2 after we've moved forward");
}
- if self.context.cur_holder_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
+ if self.context.holder_commitment_point.transaction_number() != INITIAL_COMMITMENT_NUMBER {
debug_assert!(false, "Tried to send an open_channel2 for a channel that has already advanced");
}
let first_per_commitment_point = self.context.holder_signer.as_ref()
- .get_per_commitment_point(self.context.cur_holder_commitment_transaction_number,
+ .get_per_commitment_point(self.context.holder_commitment_point.transaction_number(),
&self.context.secp_ctx);
let second_per_commitment_point = self.context.holder_signer.as_ref()
- .get_per_commitment_point(self.context.cur_holder_commitment_transaction_number - 1,
+ .get_per_commitment_point(self.context.holder_commitment_point.transaction_number() - 1,
&self.context.secp_ctx);
let keys = self.context.get_holder_pubkeys();
) {
debug_assert!(false, "Tried to send accept_channel2 after channel had moved forward");
}
- if self.context.cur_holder_commitment_transaction_number != INITIAL_COMMITMENT_NUMBER {
+ if self.context.holder_commitment_point.transaction_number() != INITIAL_COMMITMENT_NUMBER {
debug_assert!(false, "Tried to send an accept_channel2 for a channel that has already advanced");
}
/// [`msgs::AcceptChannelV2`]: crate::ln::msgs::AcceptChannelV2
fn generate_accept_channel_v2_message(&self) -> msgs::AcceptChannelV2 {
let first_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(
- self.context.cur_holder_commitment_transaction_number, &self.context.secp_ctx);
+ self.context.holder_commitment_point.transaction_number(), &self.context.secp_ctx);
let second_per_commitment_point = self.context.holder_signer.as_ref().get_per_commitment_point(
- self.context.cur_holder_commitment_transaction_number - 1, &self.context.secp_ctx);
+ self.context.holder_commitment_point.transaction_number() - 1, &self.context.secp_ctx);
let keys = self.context.get_holder_pubkeys();
msgs::AcceptChannelV2 {
}
self.context.destination_script.write(writer)?;
- self.context.cur_holder_commitment_transaction_number.write(writer)?;
+ self.context.holder_commitment_point.transaction_number().write(writer)?;
self.context.cur_counterparty_commitment_transaction_number.write(writer)?;
self.context.value_to_self_msat.write(writer)?;
destination_script,
holder_commitment_point,
- cur_holder_commitment_transaction_number,
cur_counterparty_commitment_transaction_number,
value_to_self_msat,
projects / rust-lightning / commitdiff